[REFACTOR] Add fetch on list program builder

lib/Pages/Program/bloc_program/program_bloc.dart

@@ -46,6 +46,13 @@ class ProgramBloc extends Bloc<ProgramEvent, ProgramState> {
               page: currentState.page + 1);
           return;
         }
+        if (currentState is ListProgramsSortedLoaded) {
+          yield ListProgramsLoaded(
+              programs: currentState.programs,
+              hasReachedMax: programs.next == null,
+              page: 0);
+          return;
+        }
       } on DioError catch (e) {
         yield ListProgramsError(error: e.response.data.toString());
       } catch (e) {

lib/Pages/Program/program_page.dart

@@ -135,6 +135,10 @@ class __ListProgramState extends State<_ListProgram> {
   @override
   Widget build(BuildContext context) {
     return BlocBuilder<ProgramBloc, ProgramState>(
+      bloc: ProgramBloc(
+          programRepository:
+          RepositoryProvider.of<ProgramRepository>(context))
+        ..add(const FetchProgram()),
         builder: (BuildContext context, ProgramState state) {
       if (state is InitialListProgramState) {
         return const Center(